Square.



E. A. KING.

SQUARE. APPLIOATION FILED A131146, 1908.

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.the blade A and the` shank A.

ERNEST KINGUOF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO HENRY DISSTON &

SONS, INCORPORATED, SYLVANIA.

OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENN- SQUARE Specification of Letters Patent.

Patented April 27, 1909.

Application filed April 16, 190,8.l Serial No. 427,488.

To all whom 'it may concern:

Be it known that I, EnNnsr A. KING, a citizen 0f the United States, residing inl Philadelphia, Pennsylvania, have invented certain Improvements in Squares, of which the following is a specification.

One object of my invention is to'construct a try square so that the connection between. the stock and the blade of the square will be rigidly held together and will not become out of square byrough handling.

A further object of the invention is to so construct the square that the metallic lace can be readily appliedy to the stock without weakening the same.

These objects I attain in the following manner, reference being had to the accompanying drawing, in which:w

Figure l, is a side view of my improved try square;` Fig. 2, is a section on the line 2-f2, Fig. l Fig. 3, is a section on the line 8 3, Fig. 2, With a portion ol" the blade broken away Fig. 4, is a detached perspective view ofthe blade Fig. 5, is a detached perspective view of the stock; Fig. 6, is a perspective view ofthe face of the stock; and Fig. 7, is a detached sectional viewjof the stock.

Ais the blade made ofsteel and having a shank A formed in the present instance integral with the blade. This shank may be madein a separate piece and Welded to the blade it desired. The blade is Vpreferably marked as shown. i Y

B is the stock made, in the present instance, oi hard wood and in one piece, having a transverse groovet land' a longitudinal groove b of a width to receive a portion of Y There is a series of perforations c in the stock alining with the shank an C, O are rivets or pins driven into these perforations and headed in any suitable manner, so as to retain the stock iirmly on the shank ol the square. `Small holes e are drilled in theface of the stock, as shown in Fig. 7, adapted to, receive pins'i on the `lace plate I. This face plate is slotted at i to receive the blade A.V 'I preferably coat the face of the stock B with glue before the face plate is forced in position the glue and the pins holding the face plate iirmly to the stock. In some instances this face plate may be dispensed with, although I preterfto perforations a in the blade and itsy use it. I prefer to so proportion the grooves .b in the stock and the shank A of the blade that the edge a of this shank" will be on a line with the back of the stock and this edge a is at a true right angle with the edge of the blade A.

Usually in try squares the blade is sim ly a plain straight blade and the stock is sdlid and slotted at the end to receive a portion of the blade, and the blade is held to the stock by two or more pins located close together. Consequently the joint soon becomes loose and the blade is out ofsquare with the stock, but by my invention I am enabled to place the securing pins, which attach the blade to the stock, a suitable distance apart and by providing the blade with a shank I can secure one part rigidly to the other; the inner edge ofv the shank of the blade resting 'rmly against the stock. Moreover, `in this construction, where the shank is narrower than the stock, I can make the stock out of a single piece so as to allow sulicient material for the drilling of'holes in the inner face for the reception of the pins of the face plate.

While I have shown the face plate with pins made integral therewith, these pins may be separate from the face plate, if desired.

I claim 2- l. The combination in a square, of a stock made in a single piece and slotted at one edge and at one end, a blade having an integral shank mounted in theslot, the outer edge ofthe shank being flush with the outer edge of the stock, and a series of pins attaching the blade permanently to the stock.

` 2. The combination in a square, of a stock .made in aV single piece and slotted at the outer edge, a blade having an integral shank, said shank being of a size equal to the width and length of the slot so that it will be flush with the stockat the outer edge and at the end opposite the blade, thus protecting the stock, and means for permanently securing the blade to the stock.

3. The combination in a square, of a wooden stock made in a single piece and slotted at the outer edge and at one end, a metallic face plate slotted at the same end as the stock, means for securing the face plate to the stock, a blade having an integral shank at right angles to the blade and mounted .in the slot at the vouter edge of the shank, the

blade extending into the slots in the end of to receive the blade and having a series of the shank and face plate, and means for perpins integral therewith and adapted to be manently securing the shank to the stock. l driven into the inner face of the stock.

4. The combination in a square, of a blade In testimony whereof, I have signed my 15 5 having a shank integral therewith and at name to this specification, in the presence of right apgles to its boclly portion, a stocl havtwo subscribing witnesses. ing a ongitudina sot at its rear e ge, a l Y T transverse slot at one end adapted to receive l ERNESrl A' hb G' the shank and a portion of the blade, a ses Witnesses: l0 ries of pins attaching the blade and its shank WM. E. SHUPE,

to the stock, a face plate slotted at one end lVM. A. BARR. 

